Income Taxes - Uncertain Tax Positions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance, beginning of period	$ 23	$ 18	$ 22	$ 16
Gross increases - tax positions in current period	2	3	4	5
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	0	0	1	0
Balance, end of period	$ 25	$ 21	$ 25	$ 21